CVE-2012-5539

The Organic Groups (OG) module 7.x-1.x before 7.x-1.5 for Drupal does not properly maintain pending group memberships, which allows remote authenticated users to post to arbitrary groups by modifying their own account while a pending membership is waiting to be approved.

Published: 2012-12-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-5539 is rated Low Risk (34.5/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.95%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-5539

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.19% 0.95% +0.76%
2 2025-03-17 0.12% 0.19% +0.07%
3 2023-03-07 — 0.12% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-5539

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2012-5539

Affected software / configurations for CVE-2012-5539

Vendor Product Version Raw CPE
organic_groups_project organic_groups 7.x-1.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.0:*:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.0:alpha1:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.1 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.1:*:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.1 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.1:rc1:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.1 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.1:rc2:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.1 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.1:rc3:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.1 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.1:rc4:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.2 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.2:*:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.3 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.3:*:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.4 cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.4:*:*:*:*:*:*:*
organic_groups_project organic_groups 7.x-1.x cpe:2.3:a:organic_groups_project:organic_groups:7.x-1.x:dev:*:*:*:*:*:*

References for CVE-2012-5539

cvelogic Threat Intelligence